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chrysler new yorker high idle when warm

  1. Repairs, Maintenance, Help
    I have a 96 New Yorker with the 3.5 and 92k miles. The car would always idle around 1000 rpm if i drove it for 2 minutes or 2 days. Now when i start it cold it'll idle at 1000 rpm but after it warms up it's around 1500 and won't drop back down. If i let it sit a few hours it's back at 1000 but...
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